This blood test is used to determine if a person has an allergic reaction to Penicillin G. Penicillin is an antibiotic which is commonly prescribed for treating various infections. Symptoms of an allergic reaction typically begin within an hour of taking the drug but may take longer in some people. Common symptoms include skin rash, hives, itching, fever, shortness of breath, runny nose and itchy or watery eyes. People with a more severe reaction may experience anaphylaxis which includes symptoms such as tightening of the throat and airways, drop in blood pressure, dizziness, lightheadedness, nausea, vomiting, diarrhea, rapid pulse and loss of consciousness. People experiencing signs of anaphylaxis should see a doctor immediately.
There are more than one type of penicillin and people who are allergic to one type may or may not be allergic to other types as well. Penicillin G is one of the most commonly prescribed forms of penicillin. It is typically taken intravenously because it is less resistant to stomach acid. A blood allergy test for Penicillin V is also available.
This test is typically ordered when a person experiences signs of an allergic reaction after taking penicillin or if they have increased risk factors for an allergy. Risk factors include a family history of drug allergies, having other types of allergies, taking frequent or high doses of penicillin and illnesses such as HIV and Epstein Barr Virus.
Turnaround for this test is typically 6-8 business days.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Please note that this is a blood test, not a skin test. Request A Test is currently unable to order allergy skin testing.
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